Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to crafted web page
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DeliveryServe malicious HTML to Permissions component
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ExploitTrigger memory corruption in renderer
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ExecutionEscape Chrome sandbox (scope change)
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ImpactExecute arbitrary code on host
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires the victim to use an affected Google Chrome desktop build prior to 156.0.8078.47 AND to actively load attacker-controlled content - the CVSS UI:R and the description's 'crafted HTML page' mean a user must visit a malicious or compromised page for the bug in the Permissions component to trigger; there is no drive-by-without-interaction path. No authentication is required (PR:N) and no non-default configuration is named in the description - the Permissions feature is a standard built-in Chrome component. The primary limiting factors are the mandatory user interaction (visiting the page), the need for a vulnerable unpatched version, and - per Google's Medium Chromium rating - the likely difficulty of turning the memory corruption into a reliable sandbox escape. Automatic Chrome update channels will remediate most installs quickly, further limiting the exposure window. |
| Impact | Signals conflict and must be reconciled. The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H = 9.6 Critical) describes a network-reachable, low-complexity, unauthenticated sandbox escape - the scope change (S:C) is consistent with the description's claim of code execution 'outside the sandbox,' which is the single most dangerous outcome for a browser bug. However, Google's own Chromium security team rated this only 'Medium,' a notable discrepancy: Chromium ratings weight exploitability and real-world reachability, so the Medium label suggests the memory-corruption primitive may be hard to weaponize into a reliable full-chain exploit despite the high CVSS. No EPSS score, KEV listing, or public POC is present in the input, so there is no public exploit identified at time of analysis and no evidence of active exploitation - this is not currently a confirmed emergency. Net assessment: treat as a high-priority patch because the product is ubiquitous and a patch exists (so n-day exploitation risk rises once the fix is diffed), but the absence of EPSS/KEV/POC and Google's Medium rating argue against treating it as an in-the-wild zero-day. The vendor's Medium rating versus the 9.6 CVSS should be reconciled before escalating to emergency status. |
| Exploit ScenarioDerived | A victim running an unpatched Chrome build (<156.0.8078.47) is lured to a malicious or compromised web page that serves crafted HTML targeting the Permissions component. Triggering the memory-corruption bug lets the attacker potentially break out of the renderer sandbox and execute arbitrary code on the host with the browser user's privileges. No public exploit code is identified in the provided data, and the attack requires the user to actually load the page (UI:R). |
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Alert meAnalysisAIv1 – Oct 21, 2026
Google Chrome desktop builds before 156.0.8078.47 contain a memory-safety defect in the Permissions code path that can be reached when a victim loads attacker-controlled HTML. Successful exploitation could allow unauthenticated remote attackers to execute code beyond Chrome's sandbox, but the attacker must first convince a user to visit a malicious or compromised page; Google's Medium Chromium severity and the CVSS scope change indicate meaningful impact without evidence of easy or active exploitation. No public exploit identified at time of analysis, and automatic Chrome updates should quickly reduce exposure for most users.
RemediationAI
Vendor-released patch: Google Chrome 156.0.8078.47. Update to that version or later through Chrome's automatic update channel or a managed software deployment, and verify the installed version in chrome://version. Advisory: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html; tracking issue: https://issues.chromium.org/issues/553394270. If immediate patching is not possible, enforce a minimum Chrome version via enterprise endpoint management and block or isolate outdated builds from sensitive web resources; the trade-off is operational overhead and possible user disruption. Restricting browsing to trusted sites can reduce exposure to crafted HTML but is not a reliable substitute for patching, and disabling the Permissions component is not a supported mitigation.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
CVE-2026-113007 is a CWE-119 improper restriction of operations within the bounds of a memory buffer in Google Chrome's Permissions component, which handles browser permission prompts and related policy decisions. A crafted HTML page can trigger memory corruption in that code path. The CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H vector indicates network reachability, low attack complexity, no required privileges, mandatory user interaction, a scope change, and high confidentiality, integrity, and availability impact. The S:C scope change and the description's 'outside the sandbox' language indicate the bug is relevant to sandbox escape, but Google's Medium Chromium rating and the independent assessment suggest reliable exploitation is likely difficult. No CPE strings were provided; EUVD identifies affected Chrome desktop builds as versions prior to 156.0.8078.47.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Remote crafted page with no auth (AV:N/PR:N) but victim must load it (UI:R); sandbox escape crosses a security boundary (S:C) with full code-execution impact (C/I/A:H).
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
3DescriptionCVE.org
Memory corruption in Permissions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Executive ViewAI
Google Chrome desktop environments running versions prior to 156.0.8078.47 are exposed to a critical memory-safety flaw that could allow a crafted webpage to execute code beyond the browser sandbox on user endpoints. Because Chrome is broadly deployed and exploitation depends on user browsing behavior, leadership should treat this as a fleet-wide endpoint risk even though no public exploit was identified at time of analysis. A vendor patch is available and should be deployed rapidly to reduce organizational exposure.
Apply vendor patch.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
EUVD-2026-105634
GHSA-mrr9-4cc7-jxfm
NVD
CVE.org
EPSS
Exploit-DB